Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
143 words
A method of making a heat exchanger panel, which includes the steps of: (a) providing a metallic panel having on one face a pair of parallel, spaced, longitudinally extending retainer legs, said legs having angularly inwardly extending flanges, (b) placing a metallic tube of circular cross section in the channel between said retainer legs, (c) deforming said tube by squashing it by means of a die to cause said tube to be distorted into an oval shape which is confined within the area of said panel, retainer legs and flanges, and extending between the ends of said flanges, thereby reducing the internal cross sectional area of said tube, and (d) holding said tube in its squashed relation to said channel, while subjecting the interior of said tube to sufficient pressure to expand it into intimate contact with the panel, retainer legs and flanges.
Claim 2
Independent Claim
143 words
A method of making a heat exchanger panel, which includes the steps of: (a) providing a metallic panel having on one face a pair of parallel, spaced, longitudinally extending retainer legs, said legs having angularly inwardly extending flanges, (b) placing a metallic tube of circular cross section in the channel between said retainer legs, (c) deforming said tube by squashing it by means of a die to cause said tube to be distorted into an oval shape which is confined within the area of said panel, retainer legs and flanges, and extending between the ends of said flanges, thereby reducing the internal cross sectional area of said tube, and (d) holding said tube in its squashed relation to said channel, while subjecting the interior of said tube to sufficient pressure to expand it into intimate contact with the panel, retainer legs and flanges.
Claim 3
Dependent Claim
25 words
The method of claim 1 which includes the steps of coating said tube with a synthetic resin adhesive prior to placing it in said channel.
Claim 4
Dependent Claim
45 words
The method of claim 1, wherein said panel is of aluminum and said tube is of copper, and wherein at the time of said expanding operation, the temperature of said tube and panel is raised above the intended working temperature of the heat exchanger panel.
Claim 5
Dependent Claim
40 words
The method of claim 1, wherein the deformation of said tube is performed in a press, by placing said panel on the press platen, and providing a die for the ram of said press, which die snugly embraces said channel.
Claim 6
Dependent Claim
17 words
The method of claim 4, wherein said die is held in position during the said expansion step.
Claim 7
Dependent Claim
17 words
The method of claim 3, wherein said die is held in position during the said expanding operation.
Claim 8
Independent Claim
172 words
A method of making a heat exchanger panel, which includes the steps of: (a) providing a metallic panel having on one face a pair of parallel, spaced, longitudinally extending retainer legs, said legs having angularly inwardly extending flanges, (b) placing a metallic tube of circular cross section in the channel between said retainer legs, (c) deforming said tube by squashing it by means of a die to cause said tube to be distorted into an oval shape which is confined within the area of said panel, retainer legs and flanges, and extending between the ends of said flanges, thereby reducing the internal cross sectional area of said tube, and (d) dimensioning the longitudinally extending retainer legs and their inwardly extending flanges and the tube to be retained therein such that the sum of the dimensions of the inside surface of the back of the panel between the flanges, the inside surfaces of the flanges and the underside of the die between the flanges is equal to the outside circumference of the tube.
Claim 9
Independent Claim
172 words
A method of making a heat exchanger panel, which includes the steps of: (a) providing a metallic panel having on one face a pair of parallel, spaced, longitudinally extending retainer legs, said legs having angularly inwardly extending flanges, (b) placing a metallic tube of circular cross section in the channel between said retainer legs, (c) deforming said tube by squashing it by means of a die to cause said tube to be distorted into an oval shape which is confined within the area of said panel, retainer legs and flanges, and extending between the ends of said flanges, thereby reducing the internal cross sectional area of said tube, and (d) dimensioning the longitudinally extending retainer legs and their inwardly extending flanges and the tube to be retained therein such that the sum of the dimensions of the inside surface of the back of the panel between the flanges, the inside surfaces of the flanges and the underside of the die between the flanges is equal to the outside circumference of the tube.
Claim 10
Dependent Claim
33 words
The method of claim 7 including the step of providing a mastic-like material comprising a metal compound in the vehicle which will remain plastic throughout the temperature range from 0° to 500° F.
Claim 11
Dependent Claim
39 words
The method of claim 7, such that substantially complete contact is achieved when the outside circumference of the tube is at the minimum of manufacturing tolerances and the dimensions of the inside of the channel are at a maximum.